CA1054764A - Extruding polystyrene foam with variation of mass distribution - Google Patents

Extruding polystyrene foam with variation of mass distribution

Info

Publication number: CA1054764A
Authority: CA; Canada
Prior art keywords: sheet; die; extruded; egg; carton
Prior art date: 1973-12-26
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

CA216,785A

Other languages

English (en)

French (fr)

Inventor

Vinod K. Luthra

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Mobil Oil AS

Original Assignee

Mobil Oil AS

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1973-12-26

Filing date

1974-12-24

Publication date

1979-05-22

1974-12-24 Application filed by Mobil Oil AS filed Critical Mobil Oil AS

1979-05-22 Application granted granted Critical

1979-05-22 Publication of CA1054764A publication Critical patent/CA1054764A/en

Status Expired legal-status Critical Current

Links

229920006327 polystyrene foam Polymers 0.000 title claims description 8
238000009826 distribution Methods 0.000 title description 2
238000003856 thermoforming Methods 0.000 claims abstract description 19
229920005989 resin Polymers 0.000 claims abstract description 8
239000011347 resin Substances 0.000 claims abstract description 8
239000006260 foam Substances 0.000 claims description 20
238000000034 method Methods 0.000 claims description 14
239000000463 material Substances 0.000 claims description 12
238000001125 extrusion Methods 0.000 claims description 9
239000004793 Polystyrene Substances 0.000 claims description 5
229920002223 polystyrene Polymers 0.000 claims description 3
229920005992 thermoplastic resin Polymers 0.000 claims description 3
239000004795 extruded polystyrene foam Substances 0.000 claims description 2
229920006248 expandable polystyrene Polymers 0.000 claims 1
238000004519 manufacturing process Methods 0.000 abstract description 5
229920001169 thermoplastic Polymers 0.000 abstract description 4
239000004416 thermosoftening plastic Substances 0.000 abstract description 4
238000005520 cutting process Methods 0.000 abstract description 2
235000013601 eggs Nutrition 0.000 description 27
239000004604 Blowing Agent Substances 0.000 description 3
KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
239000012141 concentrate Substances 0.000 description 2
238000003754 machining Methods 0.000 description 2
239000002667 nucleating agent Substances 0.000 description 2
229920000642 polymer Polymers 0.000 description 2
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
241000183024 Populus tremula Species 0.000 description 1
101100072652 Xenopus laevis ins-b gene Proteins 0.000 description 1
239000011324 bead Substances 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
238000010276 construction Methods 0.000 description 1
230000000994 depressogenic effect Effects 0.000 description 1
239000006261 foam material Substances 0.000 description 1
239000000155 melt Substances 0.000 description 1
230000005012 migration Effects 0.000 description 1
238000013508 migration Methods 0.000 description 1
239000000203 mixture Substances 0.000 description 1
229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
235000017557 sodium bicarbonate Nutrition 0.000 description 1
208000006379 syphilis Diseases 0.000 description 1
238000005303 weighing Methods 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/461—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface
- B29C44/465—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface with adjustable die gap
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
- B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/003—Tubular articles having irregular or rough surfaces
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7162—Boxes, cartons, cases
- B29L2031/7168—Egg-cartons
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/66—Processes of reshaping and reforming
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24496—Foamed or cellular component
- Y10T428/24504—Component comprises a polymer [e.g., rubber, etc.]

Landscapes

Extrusion Moulding Of Plastics Or The Like (AREA)
Molding Of Porous Articles (AREA)
Packaging Frangible Articles (AREA)
Housing For Livestock And Birds (AREA)
Containers Having Bodies Formed In One Piece (AREA)

CA216,785A 1973-12-26 1974-12-24 Extruding polystyrene foam with variation of mass distribution Expired CA1054764A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US42797473A	1973-12-26	1973-12-26
US05/439,513 US3978182A (en)	1973-12-26	1974-02-04	Method for extruding a polystyrene foam with variations in mass concentration across the sheet and thermoforming the sheet

Publications (1)

Publication Number	Publication Date
CA1054764A true CA1054764A (en)	1979-05-22

Family

ID=27027581

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA216,785A Expired CA1054764A (en)	1973-12-26	1974-12-24	Extruding polystyrene foam with variation of mass distribution

Country Status (9)

Country	Link
US (1)	US3978182A (nl)
JP (1)	JPS5097664A (nl)
CA (1)	CA1054764A (nl)
DE (1)	DE2460548A1 (nl)
ES (1)	ES432434A1 (nl)
FR (1)	FR2256023B1 (nl)
GB (1)	GB1441228A (nl)
IT (1)	IT1028052B (nl)
NL (1)	NL7416751A (nl)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL7500386A (nl) *	1975-01-13	1976-07-15	Wavin Bv	Werkwijze en inrichting voor het vervaardigen van een kunststofbuis met langwerpige kanalen in de wand.
JPS53101064A (en) *	1977-02-15	1978-09-04	Japan Styrene Paper Corp	Apparatus for producing corrugated synthetic resin foamed body
US4239727A (en) *	1978-09-15	1980-12-16	Mobil Oil Corporation	Method and apparatus for thermoforming thermoplastic foam articles
US4735834A (en) *	1982-08-30	1988-04-05	Phillips Petroleum Company	Plastic molding
US4496301A (en) *	1982-08-30	1985-01-29	Phillips Petroleum Company	Plastic molding apparatus
US4650629A (en) *	1982-08-30	1987-03-17	Phillips Petroleum Company	Plastic molding process
JPS6092823A (ja) *	1983-10-26	1985-05-24	Sekisui Chem Co Ltd	断面異型の発泡体の製造方法
DE4104999C2 (de) *	1991-02-19	2001-02-22	Gefinex Gmbh	Kontinuierliche Herstellung von Kunststoffschaumbahnen oder -platten
US20060000882A1 (en) *	2004-07-01	2006-01-05	Raymond Darzinskas	Cup holder
US9603685B2 (en)	2013-09-09	2017-03-28	LeedTech Resources Company, LLC	Method of manufacturing an interdental cleaner

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL264149A (nl) *	1960-05-02	1900-01-01
NL300474A (nl) *	1962-11-13	1900-01-01
US3190943A (en) *	1963-01-16	1965-06-22	Owens Illinois Glass Co	Method of producing carton liners and partitions
US3221371A (en) *	1963-03-25	1965-12-07	Stevens Alexander Michael	Extruding dies
US3454693A (en) *	1963-10-23	1969-07-08	Helene M Crenshaw	Process for forming plastic objects
US3410933A (en) *	1965-01-27	1968-11-12	Du Pont	Process and apparatus for the production of uniformly pleated foam sheet material
US3374298A (en) *	1965-04-08	1968-03-19	Charles E. Studen	Method of making drinking utensil jacket
US3484510A (en) *	1965-07-09	1969-12-16	Scott Paper Co	Method for forming foam articles
US3326443A (en) *	1965-07-19	1967-06-20	Dow Chemical Co	Egg carton
US3789095A (en) *	1965-08-19	1974-01-29	T Winstead	Continuous method of manufacturing articles from foamed thermoplastic material
US3480999A (en) *	1965-10-21	1969-12-02	Louis David Carlo	Apparatus for making forming rolls from a plastic material
US3444283A (en) *	1965-11-08	1969-05-13	Mobil Oil Corp	Method for direct injection extrusion of polystyrene foam
US3538201A (en) *	1966-02-01	1970-11-03	Gruenzweig & Hartmann	Method of extruding a foamed plastic article having breaking lines
FR94389E (fr) *	1966-09-07	1969-08-08	Ugine Kuhlmann	Procédé et dispositif pour l'extrusion des matieres plastiques expansibles.
US3534128A (en) *	1968-11-06	1970-10-13	Alexander G Makowski	Method of forming a foamed plastic article having portions of varying thickness and density
BE757510R (fr) *	1969-10-22	1971-04-14	Ugine Kuhlmann	Procede et dispositif pour l'extrusion de matieres plastiques expansibles

1974
- 1974-02-04 US US05/439,513 patent/US3978182A/en not_active Expired - Lifetime
- 1974-11-25 GB GB5093874A patent/GB1441228A/en not_active Expired
- 1974-11-29 ES ES432434A patent/ES432434A1/es not_active Expired
- 1974-12-03 JP JP49137836A patent/JPS5097664A/ja active Pending
- 1974-12-20 DE DE19742460548 patent/DE2460548A1/de not_active Withdrawn
- 1974-12-20 NL NL7416751A patent/NL7416751A/nl not_active Application Discontinuation
- 1974-12-23 FR FR7442514A patent/FR2256023B1/fr not_active Expired
- 1974-12-24 IT IT31023/74A patent/IT1028052B/it active
- 1974-12-24 CA CA216,785A patent/CA1054764A/en not_active Expired

Also Published As

Publication number	Publication date
NL7416751A (nl)	1975-06-30
FR2256023A1 (nl)	1975-07-25
ES432434A1 (es)	1976-11-01
FR2256023B1 (nl)	1979-08-10
IT1028052B (it)	1979-01-30
JPS5097664A (nl)	1975-08-02
US3978182A (en)	1976-08-31
GB1441228A (en)	1976-06-30
DE2460548A1 (de)	1975-07-10

Publication	Publication Date	Title
CA1054764A (en)	1979-05-22	Extruding polystyrene foam with variation of mass distribution
US5215691A (en)	1993-06-01	Method of forming a coextruded foam composite
US4874657A (en)	1989-10-17	Methods of producing biaxially-oriented polymer product, and the product produced thereby
US3532786A (en)	1970-10-06	Solid state forming of plastics
ES382515A1 (es)	1974-07-01	Un metodo para preparar una madera sintetica.
US4305899A (en)	1981-12-15	Method of manufacturing a plastic tube with longitudinal channels in the wall
ES408931A1 (es)	1975-10-16	Metodo de produccion de madera sintetica.
DE1569185B2 (de)	1975-03-20	Verfahren zum kontinuierlichen Herstellen eines Platten- oder Rohrprofiles aus einem schäumbaren thermoplastischen Harz
DE1942216A1 (de)	1971-03-04	Verfahren und Vorrichtung zur Extrusion aufgeschaeumter Kunststoffe
DE10120503A1 (de)	2002-01-31	Geschäumter thermoplastischer Harzformartikel und Verfahren zu dessen Herstellung
DE1901828A1 (de)	1970-08-20	Verfahren und Vorrichtungen zum Herstellen von Schaumstoff-Verbundkoerpern
US3954365A (en)	1976-05-04	Apparatus for the preparation of foamed thermoplastic extruded profiles
DE3751288T2 (de)	1995-09-14	Etiketten und deren Anwendung bei Plastikbehältern.
DE1778541A1 (de)	1971-08-05	Erzeugung von geschaeumten Harzen
US4435345A (en)	1984-03-06	Process for the production of a continuous sheet of foamed synthetic, thermoplastic polymer by extrusion
US4255110A (en)	1981-03-10	Apparatus for producing corrugated foamed plastic sheet
DE1907360C3 (de)	1974-07-18	Verfahren zum Herstellen eines strangförmigen Körpers aus Schaumpolystyrol
EP1164091A2 (de)	2001-12-19	Verpackungsschale aus Schaumstoff und Verfahren zu ihrer Herstellung
US3790436A (en)	1974-02-05	Extruded cellular slab of varying densities
DE1778416A1 (de)	1971-08-05	Extrudieren von Harzen
US4432826A (en)	1984-02-21	Coextrusion method and apparatus
US3190943A (en)	1965-06-22	Method of producing carton liners and partitions
US3806567A (en)	1974-04-23	Method for producing reinforced, cellular slabs by extrusion
JP3286693B2 (ja)	2002-05-27	パイプ状発泡体
US4353498A (en)	1982-10-12	Multiple ply coextrusion